g the hammer and pick, causing ly next. ring, B, and has a square holethrough it to re- D Eare two upright standards, one at each them to cut ‘in a direct line, until the blocks ————— SS ceive the end of the spindle which drives it ; end of the plate, A; the one, D, hasa_ho- arrive at the end of… … receives motion from a crank, 8, which is dri- now rolls along a channel where once the so- | bearings in the upright standards; one end the crank, $, but they are united in fig. 2. ven by the pin, q, secured to the face of the lid earth defied the surges of the ocean, and | projects through D, and…
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